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We report a Monte Carlo simulation of deposition of magnetic particles on a one-dimensional substrate. Incoming particles interact with those that are already part of the deposit via a dipole-dipole potential. The strength of the dipolar…

凝聚态物理 · 物理学 2009-11-10 F. de los Santos , M. Tasinkevych , J. M. Tavares , P. I. C. Teixeira

This paper reviews recent advances in the study of strongly interacting systems of dipolar molecules. Heteronuclear molecules feature large and tunable electric dipole moments, which give rise to long-range and anisotropic dipole-dipole…

量子气体 · 物理学 2016-07-14 Bryce Gadway , Bo Yan

One of the most remarkable examples of emergent quasi-particles, is that of the "fractionalization" of magnetic dipoles in the low energy configurations of materials known as "spin ice", into free and unconfined magnetic monopoles…

其他凝聚态物理 · 物理学 2015-03-17 Ludovic D. C. Jaubert , Peter C. W. Holdsworth

We analyze thermodynamics of water samples confined in nanopores and prove that although the freezing temperature can be dramatically lower, the suppression of the ice nucleation leading to the freezing temperature depression is a truly…

软凝聚态物质 · 物理学 2012-06-18 P. O. Fedichev , L. I. Menshikov

The collisional stability of ultracold polar molecules in electrostatic traps is considered. Rate constants for collisions that drive molecules from weak-field-seeking to strong-field-seeking states are estimated using a simple model. The…

原子物理 · 物理学 2009-11-06 John L. Bohn

Metallic nanoparticles have been used as catalysts for various reactions, and the huge literature on the subject is hard to overlook. In many applications, the nanoparticles must be affixed to a colloidal carrier for easy handling during…

We apply a phenomenological theory of polar liquids to calculate the interaction energy between two plane surfaces at nm-distances. We show that depending on the properties of the surface-liquid interfaces, the interacting surfaces induce…

软凝聚态物质 · 物理学 2013-04-24 P. O. Fedichev , L. I. Menshikov

We define a lattice model for the interaction of a polymer with water. We solve the model in a suitable approximation. In the case of a non-polar homopolymer, for reasonable values of the parameters, the polymer is found in a non-compact…

统计力学 · 物理学 2009-10-31 Pierpaolo Bruscolini , Lapo Casetti

Ultracold neutral plasmas, formed by photoionizing laser-cooled atoms near the ionization threshold, have electron temperatures in the 1-1000 kelvin range and ion temperatures from tens of millikelvin to a few kelvin. They represent a new…

原子物理 · 物理学 2009-11-13 T. C. Killian , T. Pattard , T. Pohl , J. M. Rost

We propose a method to sympathetically cool polar molecules with Rydberg atoms without destroying the quantum information encoded in the polar molecules. While the interactions between the two are usually state-dependent, we show how to…

量子物理 · 物理学 2025-07-22 Jeremy T. Young , Ron Belyansky , Kang-Kuen Ni , Alexey V. Gorshkov

We study in this article properties of a nanodot embedded in a support by Monte Carlo simulation. The nanodot is a piece of simple cubic lattice where each site is occupied by a mobile Heisenberg spin which can move from one lattice site to…

统计力学 · 物理学 2021-03-17 Aurélien Bailly-Reyre , Hung T. Diep

We report the temperature and field dependence of dc magnetization on sol-gel prepared nanoparticles of Ni(OH)_2. At higher temperature the system is found to behave as a paramagnet while we find evidence for superparamagnetic blocking at…

介观与纳米尺度物理 · 物理学 2007-07-26 S. D. Tiwari , K. P. Rajeev

We have performed a series of measurements on the low temperature behavior of a magnetic nano-particle system. Our results show striking memory effects in the dc magnetization. Dipolar interactions among the nano-particles {\em suppress}…

It is shown that if impurities in superfluid 3He have form of infinitely long non-magnetic strands, which are straight, parallel to each other and reflect quasi-particles specularly, the temperature of transition of liquid 3He from the…

无序系统与神经网络 · 物理学 2019-04-22 I. A. Fomin

The close connection of electricity and magnetism is one of the cornerstones of modern physics. This connection plays crucial role from the fundamental point of view and in practical applications, including spintronics and multiferroic…

强关联电子 · 物理学 2013-07-01 D. I. Khomskii

Using the Landauer-Buttiker theory we calculate the thermal conductance associated to plasmons modes in one dimensional arrays of nanoparticles closely spaced in a host fluid. Our numerical simulations show that the near-field interactions…

介观与纳米尺度物理 · 物理学 2008-01-25 Philippe Ben-Abdallah

We introduce a model of chemically active particles of a multi-component fluid that can change their interactions with other particles depending on their state. Since such switching of interactions can only be maintained by the input of…

软凝聚态物质 · 物理学 2019-05-01 Dino Osmanovic , Yitzhak Rabin

A system of identical particles interacting through an isotropic potential that allows for two preferred interparticle distances is numerically studied. When the parameters of the interaction potential are adequately chosen, the system…

凝聚态物理 · 物理学 2009-10-31 E. A. Jagla

We demonstrate the possiblity to cool nanoelectronic systems in nonequilibrium situations by increasing the temperature of the environment. Such cooling by heating is possible for a variety of experimental conditions where the relevant…

介观与纳米尺度物理 · 物理学 2018-08-15 R. Härtle , C. Schinabeck , M. Kulkarni , D. Gelbwaser-Klimovsky , M. Thoss , U. Peskin

This paper shows that magnetic reconnection could be an important heating process in cosmic gases. In any volume where magnetized plasmas collide, the dissipation of magnetic energy via reconnection seems to be unavoidable. Since most…

天体物理学 · 物理学 2007-05-23 F. Zimmer , H. Lesch , G. T. Birk